Lancaster Gate is a mid-19th century development in the Bayswater district of west central London, immediately to the north of Kensington Gardens. It consists of two long terraces of houses overlooking the park, with a wide gap between them opening onto a square containing a church. Further terraces back onto the pair overlooking the park and loop around the square. Until 1865 the terraces were known as Upper Hyde Park Gardens, with the name Lancaster Gate limited to the square surrounding the church. The development takes its name from Lancaster Gate, a nearby entrance to Kensington Gardens, itself named in honour of Queen Victoria as Duke of Lancaster.

Lancaster Gate stands alongside Hyde Park Gardens as one of the two grandest of the 19th-century housing schemes lining the northern side of Hyde Park and Kensington Gardens.
The development was planned in 1856-57 on the site of a nursery and tea gardens, and construction took at least 10 years.[6] The terraces overlooking the park were designed by Sancton Wood and those around the square by John Johnson.[1] The exteriors are largely complete, with just a couple of 20th-century infills, but many of the interiors have been reconstructed behind the facades. Many of the properties are still in residential use and command very high prices. Others are used as embassies, offices, or hotels. For many years, the headquarters of The Football Association were located in Lancaster Gate and the term was often used as a metonym for the organisation, but it later relocated to Soho Square and is now based at Wembley Stadium.